[EDIT]I really really should delay my posts for 10 minutes. I found another thread talking about logging, and as it turns out, Zimbra is logging in two different places: /opt/zimbra/log/zimbra.log and /var/log/zimbra.log. Least I have something to look at now. Sorry for the unecessary post

I may officially be losing my mind. I found another test that allowed me to verify my DNS settings. In doing so, it ran an email test:

Ok, so appears that should be positive, right? I does say it accepted the email. I have an alias set up for abuse@mydomain.com to go to admin@mydomain.com. Question is then, if it accepted the email, then why did I see nothing in the logs, nor did that user get the email?

Should I not see something related to Postfix in my logs? The documentation states there is a log for mysql, tomcat, postfix, etc..., yet I dont see anything related to Postfix. I believe I have validated all the connectivity I can; it appears I have something misconfigured, yet it doesn't seem to mind.

You're making the assumption that the mail server that the tests talked to is the mailserver that you just installed - and if you're not getting mail, and not seeing anything in the logs, that's almost certainly NOT the case.

What does an MX lookup of your domain return? Against an external DNS server (not the one on your network). Is that IP the same as your mailserver?